At random, the laptop simulates a power cycle
- keyboard backlight turns off
- power led turns off
- displays turn off
- wifi disconnects
But it immediately does a partial wake up
- Only primary display turns on - external displays remain off and disconnected.
- power led continues to blink, as if the laptop is asleep
- keyboard backlight remains off
- wifi reconnects.
At this point, the laptop is usable. To recover completely, i need to power cycle - either using power button or using reboot from os.
Looking at dmesg, I see indications of sleep and then wake - no indications why this happened. journalctl is spammy and im still digging through it.
Excerpt from dmesg that starts with issue and shows cpus waking up from sleep…
[96585.348085] PDLOG 2023/09/05 13:28:06.995 P1 Disconnected [96865.181192] wlp166s0: deauthenticating from 1c:61:b4:7e:5a:d7 by local choice (Reason: 3=DEAUTH_LEAVING) [96865.519650] PM: suspend entry (deep) [96865.536106] Filesystems sync: 0.016 seconds [96865.572098] Freezing user space processes [96865.573892] Freezing user space processes completed (elapsed 0.001 seconds) [96865.573895] OOM killer disabled. [96865.573895] Freezing remaining freezable tasks [96865.574882] Freezing remaining freezable tasks completed (elapsed 0.000 seconds) [96865.574928] printk: Suspending console(s) (use no_console_suspend to debug) [96865.890302] ACPI: EC: interrupt blocked [96865.925602] ACPI: PM: Preparing to enter system sleep state S3 [96865.934544] ACPI: EC: event blocked [96865.934551] ACPI: EC: EC stopped [96865.934553] ACPI: PM: Saving platform NVS memory [96865.935166] Disabling non-boot CPUs ... [96865.938498] smpboot: CPU 1 is now offline [96865.943203] smpboot: CPU 2 is now offline [96865.950176] smpboot: CPU 3 is now offline [96865.952866] smpboot: CPU 4 is now offline [96865.956891] smpboot: CPU 5 is now offline [96865.960004] smpboot: CPU 6 is now offline [96865.964290] smpboot: CPU 7 is now offline [96865.966658] smpboot: CPU 8 is now offline [96865.969156] smpboot: CPU 9 is now offline [96865.971814] smpboot: CPU 10 is now offline [96865.973953] smpboot: CPU 11 is now offline [96865.976096] smpboot: CPU 12 is now offline [96865.977915] smpboot: CPU 13 is now offline [96865.979566] smpboot: CPU 14 is now offline [96865.981183] smpboot: CPU 15 is now offline [96865.991878] ACPI: PM: Low-level resume complete [96865.992088] ACPI: EC: EC started [96865.992089] ACPI: PM: Restoring platform NVS memory [96865.993929] Enabling non-boot CPUs ... [96865.993965] x86: Booting SMP configuration: [96865.993965] smpboot: Booting Node 0 Processor 1 APIC 0x1 [96865.995949] CPU1 is up [96865.995968] smpboot: Booting Node 0 Processor 2 APIC 0x8 [96866.002844] CPU2 is up [96866.002863] smpboot: Booting Node 0 Processor 3 APIC 0x9 [96866.004817] CPU3 is up [96866.004834] smpboot: Booting Node 0 Processor 4 APIC 0x10
CPU/Board: intel 1240p
OS Configuration: fw.nix · main · Workspace / NixConfig · GitLab
Other related hardware: https://www.amazon.com/gp/product/B0746NKVBN/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Displays connected: 2 1440p monitors via dock, 1 1080p monitor via usb-c dp alt mode.
Other settings: Charger is constantly connected with battery limited to 40%
Any help on how to debug or diagnose would be appreciated…